require 'EventSetMock'

module Callertest
 def return_callstack_head
   called = caller.first.split(':')
 end
 def return_callstack_wo_offset
   called1 = caller(0).first.split(':'); called2 = caller(1).first.split(':')
   return [called1, called2]
 end

end

class EventSetMock
  include Callertest
end